Multiple joint extension union



Feb. 18, 1936.

J. R. GUILDFORD MULTIPLE JOINT EXTENSION UNION Filed Nov. 19, 19:54

Patented Feb. 18, 1936 MULTIPLE JOINT ax'rnusron omen Joseph R. Gnmrmg,Regina, Saskatchewan,

Application November 19, 1934, Serial No. 753,722

In Canada April 6, 1934 My invention relates to improvements in amultiple joint extension union, and the objects of my invention are toenable the removal of a closet elbow without removing the closet tank,in order to permit the removal of a closet bowl for repairs to piping,or to clear stoppages in the bowl, etc.

My invention may be installed in conjunction with an ordinary closetelbow to replace a worn out closet elbow, without removing the closettank or closet bowl.

My invention may be installed on the horizontal portion of a closetelbow as shown in the accompanying drawing, or it may be installed onthe vertical portion of the closet elbow, next to the closet tank. Forpurposes of illustration I have shown the horizontal position of themultiple joint extension union in connection with a closet spud, andcloset elbow.

My invention may also be used on closet offsets, tubing trap extensions,and on T5 in connection with bath wastes and overflows. It will enableone to move a bath tub into and out of position without raising the tubto set the waste and overflow onto the outlet stub. It will also enableone to remove the T on a bath waste and overflow, for repairsandcleani'ng the waste line, without removing the tub.

It may also be used on radiator connections where the stubs have beenroughed-in too far apart.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawing whereinlike characters of reference designate corresponding parts throughoutthe several views, in which:

Figure 1 shows a horizontal cutaway section showing the multiple jointextension union in position, connecting a closet elbow with a closetspud, with gaskets.

Figure 2 shows a horizontal cutaway section showing the union extensionnut removed from the closet spud, and the extension sleeve withdrawn.The gaskets being removed.

Figure 3 shows a plan view of the union extension nut.

Figure 4 shows the union extension nut in vertical position, half insection.

Figure 5 shows the extension sleeve in vertical position, half insection.

Figure 6 shows another type of extension sleeve in vertical position,half in section.

Referring to thedrawingz- The represents a closet elbow partly cut awayto show a section. Numeral 8 represents a closet spud partly cut away toshow a section. Numeral 8 represents the closet spud lock nut partly insection which is threadedly attached to the closet spud 8. The unionextension nut designated as It is supplied at one end with a femalethread ii for threadedly mounting onto the male thread portion I! of thecloset spud 8.

The numeral lirepresents a cylindrical extension sleeve having a femaleend' it and a male end l5. Theinterior of the female end It of Figure 5is adapted to slidably engage the exterior end of the closet elbow l.The exterior of the maleend l5 is'made the same diameter as the exteriorof the closet elbow 'i for slidably engaging the inside diameter of thecloset spud ii.

The cylindrical portion I6 of the union extension nut I0 is smoothlybored and adapted to slide over the external diameter of the female endof and the end Id of the extension sleeve it together with the outsidediameter of the closet elbow '5 .form an annular retainer for the gasketor packing l9. Likewise, the shoulder 20 of the extension sleeve it andthe end 2| of the closet spud 8 together-with the outside diameter ofthe male end ll: of the extension sleeve form an annular retainer forthe gasket or packing 22.

It will be noted by the above explanation, and a study of the drawing inFigure 1 that the sleeve l3 forms an extension of the closet elbow l,slidablyengaging the closet elbow with the closet spud 8, the unionextension nut completely covers the sleeve I3 and is threadedly attachedto the closet spud 8. The two annular retainers each packed with gasketsor suitable packing are also covered by the union extension nut. Bytightening the union extension nut rotatively on thecloset spud, thepacking in the annular retainers is compressed and both joints are madeleakless in one operation.

In Figure 2 it will be noted that by removing the union extension nutand slidably drawing back the extension sleeve to the position shownthat the closet elbow is free from the closet spud and either may beremoved.

In Figure 6,'the interior of the female end It of the extension sleeve,as will be noted is enlarged over that shown at I4 in Figure 5. The endiii of the extension sleeve in Figure 6 is inwardly flanged to slidablyfit the exterior of the closet elbow I. The object of enlarging theinterior of the female end It in Figure 6 is for the purpose ofrelieving any strain which maybe 55 I encountered due to the members tobeioined 1 tended union nut. adapted to completely envebeing out ofalignment. With the enlargement oi M in Figure 6 the closetelbow couldenter the extension sleeve at a considerable angle, and a tightcompression joint successfully made between the inverted flange l1, andthe end it of the extension sleeve in Figure 6 without strain.

It is believed that the many advantages of the multiple joint extensionunion in accordance with the present invention will be readilyunderstood, and although the preferred embodiment of the invention asillustrated and described, it is to be under ood that changes in thedetails of construction and in the combination and arrangements of partsmay be resorted to which will fall. within the scope of the claimed.

, Whatisclaimed is:- o

1. A multiple joint extension union. for connecting tubing with anexisting exteriorly threaded fitting, comprising in-combinatlon anelongated slidable nut, smoothly bored, having on one invention" as endan inverted flange, the inner edge oi the 2. a, slidable extensionseas-m insertion bee tween two existingfmemb'ers to be Joinedtogether,said extension sleeve slidable exteriorly over one existing member andinteriorly slidable in the other existingimember, said extensionsleevesurrounded with an elongated smoothly bored slidable nut having ononeend an inverted flange and threaded interiorly on the remaining endtor attachment to one existing member, annular means provided for makingwater tight joints between said extension sleeve and existing members tobe joined, and means provided on the slidable nut for tightening saidextension sleeve in position.

3. A multiple joint extension union for connecting plain cylindricaltubing with an exteriorly threaded smoothly bored fitting, comprising incombination an extended nut smoothly bored for the greater part oi itslength, having on one end an inverted flange adapted to slidably engagesaid plain cylindrical tubing interiorly threaded in its remaining endfor engaging said exteriorly threaded fitting, and a tubing extensionsleeve adapted to slidably engage the exterior or said plain cylindricaltubing with the greater part oi. its length, the remaining portion ofits length concentrically reduced, said reduced portion adapted toslidably engage the interior of said exteriorly threaded fitting, saidextension nut adapted to completely envelope said extension, sleeve,means provided for two compressible annulars and means provided on saidnut for rotatively compressing tightly the two compressible annularssimultaneously.

4. A multiple joint extension union for connecting two members in fixedrelation to each other, one member having a plain exterior end, theother member having a threaded exterior end and smoothly bored interior,said multiple joint extension union comprising in combination aconcentrically reduced sleeve adapted to slidably increase the length ofsaid plain member, said sleeve extending to co-operate with the interiorof said exteriorly threaded member and an exlope said sleeve, said nuthaving in one end an interior thread for engaging said exterior threadedmember, and an inverted flange on the remaining end for urging .saidsleeve forward to a rigid position as said, nut is rotatively screwed onto said exterior threaded member, means provided for two compressibleannulars and means provided on said nut for successively tightening bothof said compressible annulars.

5. A multiple joint extension union for connecting a closet bowl spud indistant relation with a closet flush elbow comprising in combination atubular sleeveadapted tor the greater part of its length to slidably fitthe exterior end of said closet flush elbow, concentrically reduced atits opposite end to slidably enter the smooth interior of said closetbowl spud, said tubular sleeve rotatively compressing said annularssimultane- .ously and successively, iorming positive leakless jointsbetween said sleeve, closet bowl spudand closet elbow:

6. A tubular extension sleeve for slidably increasing the length 0!plain tubing forming anintermediate between two members to be joinedtogether, saidmembers being in fixed position and distantly related,said extensionsleeve expanded'concen'trically for the greater part ofits length and adapted to slide exteriorly over one of said members, theremaining portion of said sleeve adaptedto slide interiorly oi the otherof said members, an extension coupling adapted to encase said extensionsleeve, having on one end an inverted flange for slidably engaging oneof said members, threaded interiorly in the remaining end ior engagingthe threaded exterior of said other member, the expanded portion of saidextension sleeve forming a spacer between two compressible annularsenveloped within said extension coupling, means provided on saidcoupling for tightly compressing rotatively both annulars simultaneouslyand successively.

7. A multiple Joint extension union for connecting plain cylindricaltubing with exteriorly threaded tubing wherein said plain cylindricaltubing has an exterior diameter smaller than the interior diameter ofsaid exteriorly threaded tubing, said multiple joint extension unioncomprising in combination a concentrically reduced sleeve adapted toslidably increase the length of said plain cylindrical tubing, saidsleeve extending into the interior of said exteriorly threaded tubing,and an extended nut adapted to completely envelope said sleeve, said nuthaving in one end an interior thread for directly engaging saidexteriorly threaded tubing, and an inverted flange on the remaining endfor directly compressing two thin compressible annulars interposedwithin said nut, means provided on said nut for rotatively urging saidsleeve forward into said exteriorly threaded tubing, means fortightening said compressible annulars simultaneously and successively,forming two positive leakless joints.

JOSEPH R. GUlILDFORD.

